感谢基于图像处理，启发修改。
局部模糊
import cv2
import random
import pdb
def flower_screen(img, rect):
outimg= img.copy()
for i in range(0,rect[3],20):
for j in range(0,rect[2],20):
ran = random.random()
if ran <=0.5 and i>15 and j>15:
hash=outimg[i,j]#记录中心值
width = random.randint(0,15)
height = random.randint(0,15)
for x in range(i-height,i+height):
for y in range(j-width,j+width):
outimg[x,y]= hash
return outimg
img = cv2.imread('11.png')
height, width, _ =img.shape
rect = [0,0,width-10,height-20]
outimg = flower_screen(img,rect)
cv2.imwrite('12.png',outimg)
